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| author | Gabe Black <gblack@eecs.umich.edu> | 2009-08-05 03:06:37 -0700 |
|---|---|---|
| committer | Gabe Black <gblack@eecs.umich.edu> | 2009-08-05 03:06:37 -0700 |
| commit | 2914a8eb16cd5a3804bdd500458cff2d2c413869 (patch) | |
| tree | 86d892978c494f3649c08206d180625779a5d4e2 /src/arch | |
| parent | e2e0ae576a3f0425cd7092d9115debefa64d7476 (diff) | |
| download | gem5-2914a8eb16cd5a3804bdd500458cff2d2c413869.tar.xz | |
X86: Make the check for negative operands for sign multiply more direct.
Diffstat (limited to 'src/arch')
| -rw-r--r-- | src/arch/x86/isa/microops/regop.isa | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/src/arch/x86/isa/microops/regop.isa b/src/arch/x86/isa/microops/regop.isa index f2a574954..f2e16a515 100644 --- a/src/arch/x86/isa/microops/regop.isa +++ b/src/arch/x86/isa/microops/regop.isa @@ -530,10 +530,9 @@ let {{ hiResult = ((psrc1_l * psrc2_h + psrc1_h * psrc2_l + ((psrc1_l * psrc2_l) / shifter)) /shifter) + psrc1_h * psrc2_h; - if (spsrc1 < 0) + if (bits(psrc1, dataSize * 8 - 1)) hiResult -= op2; - int64_t bigSop2 = sop2; - if (bigSop2 < 0) + if (bits(op2, dataSize * 8 - 1)) hiResult -= psrc1; ProdHi = hiResult; ''' |